Sketch the following functions:
(a) f = u (t – 3) (b) f = u (t – 1)
(c) f = u (t – 1) – u (t – 3) (d) f = u (t – 3) – u (t – 1)
(e) f = e^t u(t)
(a) See Figure 2.50. (b) See Figure 2.51.
(c) See Figure 2.52. (d) See Figure 2.53.
(e) See Figure 2.54.